Welding positioning tool and welding device

The invention belongs to the technical field of laser welding, and particularly relates to a welding positioning tool and a welding device.The welding positioning tool is used for being matched with a welding mechanism to weld a to-be-welded part, the welding positioning tool comprises a rack, a first driving part, a clamping structure and a fixing structure rotationally arranged on the rack, and the fixing structure is used for fixing the to-be-welded part; the to-be-welded part is provided with a plurality of welding faces distributed around a preset axis, the first driving part is used for driving the fixing structure to rotate around the preset axis so that one welding face can face the welding mechanism, and the clamping structure has a first state for clamping and fixing the fixing structure or a second state for loosening the fixing structure. When the clamping structure is in the first state, the welding mechanism welds the to-be-welded part, and when the clamping structure is in the second state, the